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Alexandra [31]
3 years ago
13

The diameter of each wheel of a bicycle is 28 inches28 inches. if you are traveling at a speed of 15 miles per hour15 miles per

hour on this​ bicycle, through how many revolutions per minute are the wheels​ turning
Mathematics
1 answer:
frutty [35]3 years ago
6 0
1 mile is 5280 feet, which is 63360 inches
15 miles is 63360*15=950400 inches
15 miles per hour=950400 inches/60 minutes = 15840 inches/minute
next, find the perimeter of the wheel: C=π*D=28π

15840÷28π= about 180 revolutions per minute
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The exchange rate at a post office is £1 = 1.17 euros <br><br> how many euros will u get for £280
Sati [7]

Answer:

327.6 €

Step-by-step explanation:

you can solve with an equation

1£ : 1.17€ = 280£ : x

1 : 1.17 = 280 : x

x = 1.17 * 280 : 1

x = 327.6

-------------------

check

1 : 1.17 = 280 : 327.6

0.85 = 0.85

the answer is good

------------------------------------

or you can simpy solve with a multiplication

280 * 1.17 = 327.6

8 0
3 years ago
If ST=19 and S lies at -4 , where could T be located?
Natasha2012 [34]

Answer:

15 or -23

Step-by-step explanation:

I think you probably already turned this in but in case you haven't:

ST = 19 means that line segment ST is 19 units long. If we know that S is at -4, then T has to be 19 units away from -4, right?

So there's two directions we could go.

Add 19 to -4 to get 15, so T could be at 15. (If there's a line drawn between -4 and 15, it would be 19 units long.)

But the line could go left, towards negative infinity, too. So if we subtract 19 from -4, we'd get -23. T could also be at -23. (If there's a line drawn between -4 and -23, it would also be 19 units long. There's no such thing as a negative length.)

Please mark as Brainliest! :)

8 0
3 years ago
What is the slope of the line 2x+5y=25
natali 33 [55]
You can put this solution on YOUR website! You must first get the equation into slope-intercept format: y = mx + b. . 2x+-+5y+=+-25<span> . Subtract </span>2x<span> from both sides</span>
6 0
4 years ago
Read 2 more answers
What is the value of y?
enyata [817]

Answer:

y=68

Step-by-step explanation:

Okay, here we go.

180-56=124

124/2=62

62-12=50

62+50=112

180-112=68

y=68

Have a wonderful day!

8 0
3 years ago
URGENT!! Need help can someone explain please!!!
forsale [732]

Answer:

The answer to your question is 1 = 69°

Step-by-step explanation:

To solve this problem remember that the sum of the internal angles in a triangle equals 180°.

Let the third angle of the triangle be x.

             39° + 30° + x = 180

Solve for x

             x = 180 - 39 - 30

             x = 111°

Angle x and angle 1 are supplementary so their sum equals 180°.

            111° + 1 = 180

                      1 = 180 - 111

                       1 = 69°      

5 0
3 years ago
Read 2 more answers
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